Power-loom



UNITED sTATEs PATENT oEEicE.

JAMES NIELD, OF TAUNTN, MASSACHUSETTS.

POWER-LOOM.

Specification of Letters Patent No. 3,955, dated March 15, 1845.

To all whom t may concern Be it known that I, JAMEs NIELD, of Taunton,in the State of Massachusetts, have invented a new and usefulImprovement in Looms for lVeaving, and that the following descriptionand accompanying drawings, taken in connection, constitute a full andeX- act specification of the construction and operation of my saidinvention.

Of the said drawings, Figure l, represents a top view of one end of aloom, and Fig. 2, a side elevation of the same. Fig. 3 is a verticalsectio-n taken so as to exhibit the opposite sides of t-he parts as seenin the side elevat-ion. Fig. 4 is a top view and Fig. 5, is a verticalsection of a `portion of the lay and breast beam exhibiting a somewhatdierent arrangement of certain parts to be hereinafter described.

There are six or more cords L, L, (Figs l, 2, 3) attached to the breastbeam and passing from thence through the end of the lay to, and overpulleys, h', L, on standards, toward the back of the loom, the saidcords having weights h2 h2 to keep them in a state of tension. The upperand lower sets of cords are connected together at h3, and from thispoint they diverge from each other until they pass over the pulleys; theobj ect of the divergence thereof being to admit of the passage of theshuttle between them when the lay is thrown out. These cords passbetween cords 702 stretched in a frame 7c' so hinged at its top to thelay, (and at the end of and in continuation of t-he reed) so that it(the frame) will turn on its hinge on the forward movement of the laywhen the filling has been carried through and left in the angular spacel2 formed by the cords L, lo. A lever a, c, turns on a fulcrum (attachedto the back of the lay) horizontally and is so arranged as to have itsend, a, just back of the lower end of the frame la', or so that, whenthe frame is thrown back, it shall come into contact with and move theend, a, of the lever, and thereby cause the opposite end c, to bepressed into a horizontal aperture or recess m formed to receive itthrough the side of a vertical tube ci attached to the backside of thelay.

A small piston e is inserted in the lower part of the tube-the saidpiston playing freely therein and being jointed to the upper end of avertical rod f, whose lower end or foot is jointed or suitably andsimilarly connected to one end g of an inverted vibrating T lever, z' laZ, turning on a fulcrum at m', Fig. 2. The end 7c, of the lever has anarm n, projecting from it horizontally, the inner end of the arm-or thatwhich is toward the center of the loom, is turned down smaller than therest of the arm, and enters an elongated slot 0, of a sliding lever p.The upper end Z, of the T lever has a pulling pawl g, jointed to it,which (pawl) acts upon the teeth of the ratchet wheel d on the clothbeam, or connected with it, by gear wheels in manner well known to allacquainted with power looms.

The fulcrum of the lever 2J is at r, Fig. 3. Another elongated hole orslot s, is formed in the lever, and through which the fulcrum passespermitting the lever to slide or move in the direction of its lengthwhenever necessary. The rear end of the lever p is jointed to the lowerend of an upright lever t, u, o, bearing against the ordinary protectionlever, which, being well known needs not to be described andrepresented. The other end of the lever p, has a weight fw fixed uponit, which acts to depress the end of the lever. A cam w (on the shafta?) acting on the underside of the weight w alternately elevates andpermits the lever p to descend and thus causes the pawl g to turn theratchet wheel 6l and thereby take up the cloth as woven. Now, should oneof the filling threads break during the passage of the shuttle from onebox to the other, there will be no thread in the space cl2. Consequentlythe frame is will not be moved outward when the lay beats up. Thereforethe lever a, b, c will be stationary, or it-s end c will be within thetube 0l, and as the piston e rises, it will abut against the lever, andthereby cause the leverp to be held down, so that a projection orshoulder y of the cam will come in contact with another one or shoulder.e of the weight, and

:move the lever p forward or longitudinally and thus stop the movementof the machine. When the lay beat-s back, an arm a, projecting from thestandard c, which supports the pulleys of the threads h, h, strikes theend a of the lever a, b, c, and forces it and the frame k forward so asto throw'the other end (c) of the lever out of the tube d, and therebypermit the requisite use of the piston within the tube.

In lieu of the looped strings 71 7L, I sometimes use a fork L2 (Figs. 4and 5) of three 'resented in Figs. l, 2, and 3.

bars bent upward vertically and so arranged upon a bent bar b2 (turningupon a bearing c2 at its opposite and longest end) that the prongs ofthe fork will pass between t-he vertical strings of t-he frame c, thesaid frame being arranged like that rep- A horizontal shaft iZ2 may bearranged so as to move in proper bearings in front of the frame 7c. Thisshaft has a projection e2 at one end which extends underneath the frame7c, when the latter is thrown forward, but which will rise upward whenthe frame does not go forward. A similar projection f, extends from theother end of the shaft as seen in Fig. A. The piston e o-f the verticalrod f, (Fig. 2) operates in connection with this last projection as itdid with the lever a, c Fig. 1.

I claim- The peculiar take up motion and machinery for arresting theprogress of the said frame and the usual hand lever and shaft of theratchet wheel CZ or connecting the same together; that is to say, Iclaim the combination of the said mechanism for the object and purposesspecified; the same being substantially as set forth.

In testimony that the foregoing is a correct specification of my saidinvention, I have hereto set my signature this fourth day of February A.D. 1845.

JAlWES NIELD.

Witnesses S. A. VVILDING, JOEL W. WHITE-

